Help me pls this is overdue and I am so confused cause the teacher didn't cover it long enough for me to understand. Please answer the question and possibly maybe explain it to me if you can.

Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor

The ideal gas model is valid if which of the following conditions is true? the gas density is low. the gas density is high. the temperature is low. the temperature is high. the gas density and the temperature are low. the gas density and the temperature are high. the gas density is high and the temperature is low. the gas density is low and the temperature is high.

Failure to accomplish erikson’s psychosocial task of late adulthood leads to despair. a. true b. false